Problem 748. Wrapping the Tower of Pisa

The famous artist Christo Vladimirov Javacheff, who likes pizza, wants to wrap the well-known Italian tower in paper. It is a circular tower with radius s [m] and height a [m] and he decided to neglect the fact that it was leaning. How many square meters of paper should he bring as a minimum? Don't forget the top, although it is not so nice!

This Problem may as well be deleted. There is only one case in the Test Suite, and the required formula is given both in the Comments and within the Test Suite itself. There is no challenge when Players can simply copy-and-paste to 'solve' the Problem.